87781275

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^2\times {\mathrm{211}}^1$

素因数の和:313

約数の個数: 54

約数和(自身を含む): 161730348

約数和(自身を除く): 73949073

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 129, 211, 215, 225, 387, 633, 645, 1055, 1075, 1849, 1899, 1935, 3165, 3225, 5275, 5547, 9073, 9245, 9495, 9675, 15825, 16641, 27219, 27735, 45365, 46225, 47475, 81657, 83205, 136095, 138675, 226825, 390139, 408285, 416025, 680475, 1170417, 1950695, 2041425, 3511251, 5852085, 9753475, 17556255, 29260425, 87781275]

約数ペア:

[(1, 87781275), (3, 29260425), (5, 17556255), (9, 9753475), (15, 5852085), (25, 3511251), (43, 2041425), (45, 1950695), (75, 1170417), (129, 680475), (211, 416025), (215, 408285), (225, 390139), (387, 226825), (633, 138675), (645, 136095), (1055, 83205), (1075, 81657), (1849, 47475), (1899, 46225), (1935, 45365), (3165, 27735), (3225, 27219), (5275, 16641), (5547, 15825), (9073, 9675), (9245, 9495)]